Transmission problem 1995 L35

   / Transmission problem 1995 L35 #1  

Audiofn

New member
Joined
Nov 15, 2020
Messages
16
Tractor
Kubota L35
Hello all. I have a 1995 L35 that I just purchased. The previous owner had told me that occasionally the tractor would not go into gear. He thought that if I left it in the gear it was in that it would keep working OK. Turns out that it kind of works for a while then will start to slip. After doing some looking around on this forum and a few others it looks like the likely culprits could be the GTS valve body (hope not) or the shift linkage? It sounds like the shift linkage would be more common? To do the GTS valve is the only option to split the tractor? Due to the age of the machine I am fine with cutting out a portion of the floor and welding it back in. This is not a cream puff of a tractor so that would not bother me even a little bit. So far the symptoms are:

1) Start up the tractor and everything seems to work perfectly. Has plenty of power when I push the bucket into a pile and backhoe works perfectly. Power steering is fine.

2) As the machine warms up I start to loose forward power no matter what gear I am in. If it was a car I would say the clutch was slipping but it sounds like this could be more complicated than that? Reverse does seem to work even though I can not get it to go forward but still not perfect. If I have it moving forward even down a hill and I push the brake pedal in at all it will stop easily. Steering still works perfectly and bucking and backhoe all work perfectly. Just no forward or revers.

3) When shifting either forward or revers and 1-8 I sometimes get a weird squeaking noise out of it. Short squeak like letting air out of a balloon while pulling the neck with both hand. This is fairly repeatable. It shounds like it is coming from around the base of the steering column. I am going to try and have my son move things around a bit while I look a little more.

4). There are some wiring issues. Is there any chance that a wiring issue could cause this problem?

Thanks!
 
   / Transmission problem 1995 L35
  • Thread Starter
#2  
One additional thing. If I put it in gear and let the clutch out and let it sit that way for a bit sometime it will engage and move OK.
 
   / Transmission problem 1995 L35
  • Thread Starter
#3  
I went back out again this evening and when it was cool everything works perfectly again then as soon as things warm up it starts to slip.
 
   / Transmission problem 1995 L35 #4  
I just purchased a L35. The machine sat for a long time out in a field (about 10 years).



I wonder what fluid is in your hydraulic system. It may not be hydraulic fluid.

Consider draining unknown fluid and replacing it with the factory recommended hydraulic fluid. Change the hydraulic filter too, installing a factory replacement.


After purchasing a second hand tractor "best practice" is to change all fluids and filters immediately.
 
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   / Transmission problem 1995 L35
  • Thread Starter
#5  
I wonder what fluid is in your hydraulic system. It may not be hydraulic fluid.

Consider draining unknown fluid and replacing it with the factory recommended hydraulic fluid. Change the hydraulic filter too, installing a factory replacement.


After purchasing a second hand tractor "best practice" is to change all fluids and filters immediately.

This is the way I am looking to move next. I wish it was not a 4 plus week wait to get into a dealer. I would just drop it off and have them do the testing.
 
   / Transmission problem 1995 L35
  • Thread Starter
#6  
I wonder what fluid is in your hydraulic system. It may not be hydraulic fluid.

Consider draining unknown fluid and replacing it with the factory recommended hydraulic fluid. Change the hydraulic filter too, installing a factory replacement.


After purchasing a second hand tractor "best practice" is to change all fluids and filters immediately.

So the dealer gave me Kubota AW 46 all weather fluid. I just checked with my owners manual and saw that they recommend super UDT. So I have the wrong stuff in there for sure. So tomorrow I will drain everything back out and put the new proper fluids in as well as change the filter again. Expensive mistake to make but I don't have huge hopes that this will fix the problem. The dealer did say that with the thicker fluids it can cause issues with the fluid going through some of the small holes in the valving system. So maybe as doubtful as it is I will get lucky.
 
   / Transmission problem 1995 L35 #7  
If the filter is new just let it drain out and put it back on...
 
   / Transmission problem 1995 L35
  • Thread Starter
#8  
If the filter is new just let it drain out and put it back on...

I replaced all the hoses so I left the old filter on and was going to run it for a very short time and then change it.
 
   / Transmission problem 1995 L35 #9  
I replaced all the hoses so I left the old filter on and was going to run it for a very short time and then change it.

Ok change it......:)
 
   / Transmission problem 1995 L35 #10  
I have a 1995 L35 that I just purchased. Turns out that it kind of works for a while then will start to slip. So far the symptoms are:

Start up the tractor and everything seems to work perfectly. Has plenty of power when I push the bucket into a pile and backhoe works perfectly. Power steering is fine.

As the machine warms up I start to loose forward power no matter what gear I am in.

When shifting either forward or revers and 1-8 I sometimes get a weird squeaking noise out of it.

I went back out again this evening and when it was cool everything works perfectly, then as soon as things warm up it starts to slip.


This suggests the existing fluid is thinning out when hot.
 
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